| 甲苯溶剂中聚丁二烯基锂缔合度测定 |
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| 引用本文： | 于善普,李晶洁,许国津.甲苯溶剂中聚丁二烯基锂缔合度测定[J].应用化学,1984,0(1):32-35. |
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| 作者姓名： | 于善普 李晶洁 许国津 |
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| 作者单位： | 大连工学院化工系 |
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| 摘 要： | 本工作是甲苯-丁二烯-丁基锂聚合体系研究的一部份。在甲苯溶剂中进行聚丁二烯基锂缔合度测定,在国内外文献上尚未见报导,通过实验可以看出,聚丁二烯基锂甲苯溶液的平均缔合度,在引发剂浓度>1×10-3mol/1范围内等于或大于2,此外用粘度法测定聚丁二烯基锂的缔合度时,如果剪切速度在12～450see-1之间,测量结果不受剪切的影响。
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| 收稿时间： | 1983-10-18 |
DETERMINATION OF THE DEGREE OF ASSOCIATION OF POLYBUTADIENYL LITHIUM IN TOLUENE SOLUTION |
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| Yu shenpu,Li Jinjie,Xu Guojin.DETERMINATION OF THE DEGREE OF ASSOCIATION OF POLYBUTADIENYL LITHIUM IN TOLUENE SOLUTION[J].Chinese Journal of Applied Chemistry,1984,0(1):32-35. |
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| Authors: | Yu shenpu Li Jinjie Xu Guojin |
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| Institution: | Chemical Engineering Department Dalian Institute of Technology |
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| Abstract: | In this paper the determination of the degree of association of polybu-tadienyl lithium in toluene as solvent has been reported. The experimentalresults show that the average degree of association of polybutadienyl lithiumin toluene is equal or greater than 2 (when the initiator concentratonis>1?10-3mol/l). The viscosity ratio is not found to be influenced by thevariation of shear velocity in viscolsimeter, when the degree of associationof polybutadienyl lithium is measured by viscosimetry. |
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